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tuning-knob-pcboard

https://github.com/bmo/tuning-knob-pcboard

This is a KiCAD PC Board design for a tuning knob that works with PowerSDR and SmartSDR and Remote Ham Radio (RHR). Uses STM32 hardware. Find the software that works with this here: https://github.com/bmo/hwcontrol

Features:

  • 24ppr encoder
  • multiple ways to build it
  • uses mostly-available STM32F103 "Blue Pill" PC boards, may also work with newer, more powerful, more available, and cheaper (!?) "Black Pill" PCBs using STM32F4xx CPUs (with code changes)
  • through-hole parts
  • 20-30 minute assembly
  • traces already supplied for future expansion for footswitch inputs, flash memory, SPI-based displays
  • works with RHR, PowerSDR, SmartSDR when used in conjunction with https://github.com/bmo/hwcontrol

Version 1:

Build it two ways:

  • snap-action tactile switches and 3mm LEDs
  • small tactile switches with built-in LEDs
  • isolated pin 40 to not prohibit "Black Pill" from being plugged in hwcontrol_513k

Version 2 (in Progress):

  • Cherry MX or compatible "buttons"
  • RGB LEDs for illumination

Future:

  • With a composite USB Device providing two CDC (serial) devices, a solution that provides a Knob and a de-bounced footswitch

References:

Contributions

Thanks to @cjtheham for BOM and documentation!